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1 year ago

Fractions and Percents HELP ME ☹️

Mathematics

2 answers:

vovangra [49]1 year ago

5 0

Answer:

1 (a) 27 ackees

(b) 45% were sold. Simplifying 27/60 = 9/20

2 (a) 30 were given. 80 - 20 = 60. 60 divided by 2 is 30.

b) 37.5% were given away. the fraction is 30/80, simplified 3/8. 3/8 = 0.375.

3 (a) 16 were going on a tour. 200 - 40 = 160. 1/10 or 10% of 160 is 16.

(b) 8%. 16/200 simplifies to 2/25. 2/25 = 0.08

Step-by-step explanation:

pls mark brainliest!

kolbaska11 [484]1 year ago

4 0

Answer:

\/ ANSWERS \/

Step-by-step explanation:

1A) 27

3B) 45%

2A) 20

2B) 25%

3A) 16

3B) 8%

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Ethan Planted a tree that was 1.85 meters tall. Several years later, the tree is 5.30 meters tall. Which equation can be used to

Sergeu [11.5K]

Answer: B. 1.85 + x = 5.30

Explanation:

The starting height of the tree was 1.85 meters. To find the number of meters the tree grew, you would subtract the current height from the previous height.
5.30-1.85=x. This equation is the same as 1.85 + x = 5.30 if you switch the 5.30 and x.

7 0

2 years ago

Read 2 more answers

Angle θ is in standard position. If (8, -15) is on the terminal ray of angle θ, find the values of the trigonometric functions.

nikitadnepr [17]

Answer:

* sin Ф = -15/17 * cos Ф = 8/17 * tan Ф = -15/8

* csc Ф = -17/15 * sec Ф = 17/8 * cot Ф = -8/15

Step-by-step explanation:

Lets revise the trigonometric function of angle Ф

- Angle θ is in standard position

- Point (8, -15) is on the terminal ray of angle θ

- That means the terminal is the hypotenuse of a right triangle x and y

are its legs

∵ x-coordinate is positive and y-coordinate is negative

∴ angle Ф lies in the 4th quadrant

- The opposite side of angle Ф is the y-coordinate of the point on the

terminal ray of angle Ф and the adjacent side to angle Ф is the

x-coordinate of that point

∵ The length of the hypotenuse (h) = √(x² + y²)

∴ h = √[(8)² + (-15)²] = √[64 + 225] = √[289] = 17

∴ The length of the hypotenuse is 17

- Lets find sin Ф

∵ sin Ф = opposite/hypotenuse

∵ The opposite is y = -15

∵ The hypotenuse = 17

∴ sin Ф = -15/17

- Lets find cos Ф

∵ cos Ф = adjacent/hypotenuse

∵ The adjacent is x = 8

∵ The hypotenuse = 17

∴ cos Ф = 8/17

- Lets find tan Ф

∵ tan Ф = opposite/adjacent

∵ The opposite is y = -15

∵ The adjacent = 8

∴ tan Ф = -15/8

- Remember csc Ф is the reciprocal of sin Ф

∵ csc Ф = 1/sin Ф

∵ sin Ф = -15/17

∴ csc Ф = -17/15

- Remember sec Ф is the reciprocal of cos Ф

∵ sec Ф = 1/ cos Ф

∵ cos Ф = 8/17

∴ sec Ф = 17/8

- Remember cot Ф is the reciprocal of tan Ф

∵ cot Ф = 1/tan Ф

∵ tan Ф = -15/8

∴ cot Ф = -8/15

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2 years ago

The following table shows the length and width of a rectangle: Length Width Rectangle A 3x 2 2x − 1 Which expression is the resu

Stolb23 [73]

The perimeter of a rectangle is 10x + 2 which is a polynomial function. Option C is the correct answer.

<h3>What is a perimeter?</h3>

A perimeter is a closed path that outlines either a two-dimensional shape or a one-dimensional length.

Given that the length is 3x+2 and the width is 2x-1. The perimeter of a rectangle is given below.

$P = 2 (L + W)$

$P = 2 ( 3x+2 + 2x-1)$

$P = 2 ( 5x +1)$

$P =10x +2$

A polynomial function is a function that involves only positive integer exponents of a variable in an equation.

Hence we can conclude that the perimeter of a rectangle is 10x + 2 which is a polynomial function. Option C is the correct answer.

To know more about the perimeter, follow the link given below.

brainly.com/question/6465134.

6 0

1 year ago

How do I figure out 8 meters increased by 25 percent ?

gregori [183]

Do 8 (.25) = 2 + 8 = 10 meters
*Thank you for points

4 0

2 years ago

Read 2 more answers

What is the area of

tatiyna

Answer:

7 * 9 = 63

63 for when both of the triangles are combined, 31.5 for one triangle.

Rectangle = 18 * 22 = 396

396 + 63

459 cm^2

8 0

2 years ago